Android app using Google Maps Directions API

I need an Android app, consisting of one activity only. It should have a text input, where you can enter the address. Then you click a button and it sends the address together with your coordinates (GPS) to Google Directions API. The API will return steps (directions) in xml format. So far the task is trivial, however, I need the app to display (in text) instructions as of where to go. Simply displaying instructions from the received xml is not enough. For example, imagine I am facing the opposite direction and move forward. The app should display turn around (or turn 180 degrees) and move forward for so and so meters. If I then deviate from the path to the left for, let us say, more than 30 degrees, it should display "you should turn 30 degrees to the right and keep going for so and so meters".

The suggested algorithm is:

1) Find your direction (vector)

2) Find the vector from your position to the next "end_location"

3) You can find the angle by cross product.

4) If the arcsin of the cross product is 0 or within acceptable 5 degrees and pointing in the same direction everything is fine, just display "go forward for x meters"

5) else display "you are deviating from the path. turn x degrees to the left/right"

The app should constantly (or every 3 seconds) compare it is gps coordinates to the next "end_location" from the api. The "end_location" is given in longitude and latitude and, probably, will have to be converted to a vector first.

The general idea is, a person should be able to follow google directions without the map itself.

28 freelancere byder i gennemsnit £183 på dette job

Hello.
I've read your description carefully and get to know that you need to make android app using google maps Directions API.
I have developed many apps and can complete your app in short time.
Relevant Skills and EFlere

Hi Sir I can do your project perfectly.
I have rich experience in Mobile Development for 9 years.
I think it is me who you are looking for.
If you choose me, I can do my best for you.
Regards.
Thanks
Relevant Skills Flere

Dear customer.
I checked your proposal.
I hope to work with you.
Relevant Skills and Experience
I have wealth skills on Android App and backend development.
And I also have strong skills on third party and several ApiFlere

My name is LiMing.
I have been coding for over 10 years since I was 16 years old, and have rich experiences.
I read your description carefully and understood perfectly
Please contact to me and let's discuss your proFlere

Hello Sir
I have checked your requirements carefully and already mastered mobile development
As you can see from my profile, if you wish, I can explain about my portfolios
Relevant Skills and Experience
I have professFlere

Hi,
I have read and understood your requirements completely and I am interested in development of this app to show direction in text to user.
I will develop app with very good quality.
Relevant Skills and ExperienceFlere

Hi,
I have seen your requirements about an Android App. I have seen what type of functionality you want & I can assure you I can do it fully for you.
Relevant Skills and Experience
*Certified Developers
*7 years of exFlere

Dear Sir/ Madam,
I am interested in this project as it is exactly within my scope of expertise: I am ready to start from today.I have 4+ years of experience in Android/iPhone development
Relevant Skills and ExperiencFlere

Hi Mate,
We have small team to develop android app in studio. we worked on social media,chatting,map,payment integration and social event app too, we build new and do changes in existing app as need.
Relevant Skills Flere

Hello, Thank you very much for sharing your requirement. I have read the brief project description and I would like to be invited for further discussion to proceed.
Relevant Skills and Experience
We are a team of 8 yFlere

Hello, I have developed many apps for 7 years including social, location, uber like app, hybrid app and image processing.
Please check the followings.
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[login to view URL]Flere

Hi,
We have already done many type of app for clients
I would like to suggest you we will develop it for you in Android, iOS Native due to best framework support on the schema level.
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WFlere

Greetings!
As an expert in mobile development, I'm very interested in your job.
I have reviewed your job description carefully, I think this job is best fit to me.
Best Regards
Xuan
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- HFlere

Hello, We are a experienced mobile and web app developers. We are interested in your project. We have good working experience of google map. We are expecting positive response from your side.
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